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Finding the Fourth Proportional to 101,108.37, 151,657.07 and 30,987.87

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Solution

The fourth proportional to 101,108.37, 151,657.07 and 30,987.87 is: 46,480.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,108.37 : 151,657.07 = 30,987.87 : x
  2. Step 2: Convert to fraction form
    101,108.37/151,657.07 = 30,987.87/x
  3. Step 3: Cross multiply
    101,108.37x = 151,657.07 × 30,987.87
  4. Step 4: Simplify right side
    101,108.37x = 4,699,529,414.80
  5. Step 5: Solve for x
    x = 4,699,529,414.80/101,108.37
  6. Step 6: Final answer
    x = 46,480.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.